A colonoscopy is a procedure that enables a gastroenterologist to evaluate the inside of the colon. Most often this is done to search for polyps, growths, inflammation or ulcers that may lie on the colon walls, the precursors to colon cancer. The standard recommendation is that every adult undergo a colonoscopy at 50 years of age and at least once every ten years thereafter [1].

The goal of a colonoscopy is to navigate the entire length of the colon from anal sphincter to cecum and observe all surfaces of the descending, transverse, and ascending colon. Used to perform a colonoscopy, a colonoscope is a long, thin, flexible tube that has a small, fiber-optic camera and light located on the end of the scope. The most difficult step of the procedure is the navigation of the sigmoid colon. With its S-shaped curve, the sigmoid colon can form difficult angulations,...

You do not currently have access to this content.